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Umba valley, Tanzania

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Wide variety of fancy sapphire colours, including blue sapphires. Many other gemstones, including garnets are found in the alluvial plains of the Umba valley.

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  • 53_GARNET UMBA
  • Gemstone gravels from Umba Valley, Tanzania
  • Umba Valley sapphires
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Posted: 08/31/2011

Author: SSEF

Category: Africa, Sapphire, Spessartine

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